TM-5-3805-254-14-P-2
TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW, IHC MODEL F-5070 (CCE)
TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, GENERAL SUPPORT AND DEPT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS INFORMATION AND SUPPLEMENTAL MAINTENANCE INSTRUCTIONS)
JUNE 1980
TM-5-3805-254-14-P-2 - Page 54 of 894
MOTOR TRUCK SERVICE MANUAL
AXLES-REAR
Forward Right Hand Turn--Braking Condition
In this situation, the vehicle is moving forward, but the direction
of torque of the ring gear is reversed because the vehicle is
being slowed down by braking action.
This reversal of torque
is produced by the action of road traction driving the wheels
against the torque of the engine.
In this condition, when a
right hand turn is negotiated, the left hand (outside) wheels
rotate at ring gear speed since the left hand driven clutch
member remains fully engaged while the right hand (inside)
wheels rotate slower than ring gear speed.
The symmetrical design of the differential makes it possible to
function in the manner described above which is in effect
directly opposite to that described as Right Hand Turns
Forward Direction.
It should be noted that if a turn is negotiated in such a manner
that power is first applied and then braking action is
encountered before the turn is completed, the differential is
designed to function without interruption and will automatically
take care of such reversal of torque.
Left Hand Turn--Forward Direction
In making a left hand turn with the vehicle driven in a forward
direction, the left hand wheel is on the inside of the turn and
the power is applied to it so that it must rotate at ring gear
speed.
The right hand wheel travels through the greater arc,
being on the outside of the turn.
Its driven clutch member
becomes disengaged from the spider clutch teeth, permitting it
to be rotated by ground traction faster than the ring gear (See
Figs 7 and 8)
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